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United Nations. Food and Agriculture Organization.
Reviews water conservation "techniques which have been tested and found useful somewhere in the world, and which might be suitable for use in other conditions." Includes a section on water harvesting.
National Research Council of the National Academies.
Covers the "development of technology for inexpensive recycling of urban wastewater without adverse impacts on public health; improvement of the economic efficiency in using water in agriculture; and the development of new and innovative institutional arrangements for managing water consistent with historical antecedents and traditions of each country."
American Water Works Association.
"Intended to keep the water industry in the know about tools, issues and developments related to water conservation."